LCORE-700: better docstring for root endpoint handler

[tisnik]

Description

LCORE-700: better docstring for root endpoint handler

Type of change

• Refactor
• New feature
• Bug fix
• CVE fix
• Optimization
• Documentation Update
• Configuration Update
• Bump-up service version
• Bump-up dependent library
• Bump-up library or tool used for development (does not change the final image)
• CI configuration change
• Konflux configuration change
• Unit tests improvement
• Integration tests improvement
• End to end tests improvement

Related Tickets & Documents

• Related Issue #LCORE-700

Summary by CodeRabbit

• Documentation
  • Expanded root endpoint description to state it serves the static HTML index page and outlines page contents (heading, embedded image, links to Swagger and ReDoc).
  • Clarified module docstring for utility helpers to better describe their role in the core service.
  • No behavioral or authorization changes; API docs now offer clearer explanations for users.

[coderabbitai]

Walkthrough

Docstrings updated: the root endpoint's docstring now describes GET handling and returned static HTML (heading, image, Swagger UI and ReDoc links); module docstring for utils clarified. No functional, interface, or control-flow changes.

Changes

Cohort / File(s)	Summary of Changes
Root endpoint docstring src/app/endpoints/root.py	Expanded the endpoint docstring to explicitly describe handling GET requests for / and the static HTML index content (heading, embedded image, Swagger UI and ReDoc links). No signature, logic, auth, or response changes.
Utils module docstring src/utils/__init__.py	Reworded module docstring from "Utils." to "Utility classes and functions for the Lightspeed Stack core service." No functional or export changes.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

A nibble at the docs by moonlit code,
I hop and polish the pathway's node.
Nothing moved but words refined,
Clearer doors for friends to find.
🥕✨

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title Check	✅ Passed	The title clearly indicates that the change improves the docstring for the root endpoint handler and references the associated ticket, accurately reflecting the main purpose of the PR.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

✨ Finishing touches

• 📝 Generate Docstrings

🧪 Generate unit tests

• Create PR with unit tests
• Post copyable unit tests in a comment

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 2940178 and b56b7ca.

📒 Files selected for processing (2)

• src/app/endpoints/root.py (1 hunks)
• src/utils/__init__.py (1 hunks)

✅ Files skipped from review due to trivial changes (1)

• src/utils/init.py

🚧 Files skipped from review as they are similar to previous changes (1)

• src/app/endpoints/root.py

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (2)

• GitHub Check: build-pr
• GitHub Check: e2e_tests

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Actionable comments posted: 1

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 7ea68c0 and 2940178.

📒 Files selected for processing (1)

• src/app/endpoints/root.py (1 hunks)

🧰 Additional context used

📓 Path-based instructions (5)

src/**/*.py

📄 CodeRabbit inference engine (CLAUDE.md)

Use absolute imports for internal modules (e.g., from auth import get_auth_dependency)

Files:

• src/app/endpoints/root.py

src/app/**/*.py

📄 CodeRabbit inference engine (CLAUDE.md)

Use standard FastAPI imports (from fastapi import APIRouter, HTTPException, Request, status, Depends) in FastAPI app code

Files:

• src/app/endpoints/root.py

**/*.py

📄 CodeRabbit inference engine (CLAUDE.md)

**/*.py: All modules start with descriptive module-level docstrings explaining purpose
Use logger = logging.getLogger(name) for module logging after import logging
Define type aliases at module level for clarity
All functions require docstrings with brief descriptions
Provide complete type annotations for all function parameters and return types
Use typing_extensions.Self in model validators where appropriate
Use modern union syntax (str | int) and Optional[T] or T | None consistently
Function names use snake_case with descriptive, action-oriented prefixes (get_, validate_, check_)
Avoid in-place parameter modification; return new data structures instead of mutating arguments
Use appropriate logging levels: debug, info, warning, error with clear messages
All classes require descriptive docstrings explaining purpose
Class names use PascalCase with conventional suffixes (Configuration, Error/Exception, Resolver, Interface)
Abstract base classes should use abc.ABC and @AbstractMethod for interfaces
Provide complete type annotations for all class attributes
Follow Google Python docstring style for modules, classes, and functions, including Args, Returns, Raises, Attributes sections as needed

Files:

• src/app/endpoints/root.py

src/{app/**/*.py,client.py}

📄 CodeRabbit inference engine (CLAUDE.md)

Use async def for I/O-bound operations and external API calls

Files:

• src/app/endpoints/root.py

src/app/endpoints/**/*.py

📄 CodeRabbit inference engine (CLAUDE.md)

In API endpoints, raise FastAPI HTTPException with appropriate status codes for error handling

Files:

• src/app/endpoints/root.py

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (2)

• GitHub Check: build-pr
• GitHub Check: e2e_tests